WO2020042550A1 - Ventilateur à volute et système de ventilateur l'utilisant - Google Patents

Ventilateur à volute et système de ventilateur l'utilisant Download PDF

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Publication number
WO2020042550A1
WO2020042550A1 PCT/CN2019/076272 CN2019076272W WO2020042550A1 WO 2020042550 A1 WO2020042550 A1 WO 2020042550A1 CN 2019076272 W CN2019076272 W CN 2019076272W WO 2020042550 A1 WO2020042550 A1 WO 2020042550A1
Authority
WO
WIPO (PCT)
Prior art keywords
volute
panel
end panel
blade
air inlet
Prior art date
Application number
PCT/CN2019/076272
Other languages
English (en)
Chinese (zh)
Inventor
林炎虎
张淼
肖佰显
Original Assignee
中山大洋电机股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 中山大洋电机股份有限公司 filed Critical 中山大洋电机股份有限公司
Publication of WO2020042550A1 publication Critical patent/WO2020042550A1/fr

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
    • F04D29/30—Vanes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/60—Mounting; Assembling; Disassembling
    • F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing

Definitions

  • the utility model relates to a volute fan and a fan system applied thereto.
  • a conventional volute fan includes a volute 1 a and a wind wheel 2 a.
  • the wind wheel 2 a is installed in a cavity of the volute 1 a.
  • the volute 1 a includes an upper end panel 11 a and a lower end panel 12 a. And a side panel 13a connected between the upper end panel 11a and the lower end panel 12a.
  • the lower end panel 12a is provided with a first air inlet 15a, and the side panel 13a is provided with a first air outlet 16a.
  • the wind wheel 2a includes an upper wind plate 21a.
  • a second air inlet 24a is provided in the middle of the downwind disk 22a, and an air duct is formed between two adjacent blades 23a.
  • the blade 23a is divided into an inner blade section 231a and an outer blade section 232a.
  • the blade 23a radially exceeding the upper wind plate 21a belongs to the outer blade section 232a.
  • the inner blade section 23a located within the second air inlet 24a belongs to the inner blade section 231a.
  • the distance h1 between the top surface 2321a and the first inner side surface 111a of the upper end panel 11a is equal in the radial direction, and the second inner side surface 121a of the lower end panel 12a is a plane.
  • the airflow enters from the first air inlet 15a, flows through the air passage between the second air inlet 24a, the upper wind plate 21a and the lower wind plate 22a, exits from the air passage between the upper wind plate 21a and the lower wind plate 22a, and enters the upper panel 11a and
  • the sudden increase in the air outlet area between the downwind disk 22a will cause a large stripping loss of the airflow, and also cause a sudden change in the airflow velocity and pressure, which will cause turbulence and large rotational noise.
  • the overall efficiency is low and Cause noise and vibration of the whole machine.
  • the purpose of the utility model is to provide a volute fan and a fan system applied thereto.
  • a volute fan includes a volute and a wind wheel.
  • the volute includes an upper end panel, a lower end panel, and a side panel connected between the upper end panel and the lower end panel.
  • the upper end panel, the lower end panel, and the side panel surround a cavity.
  • the wheel is installed in the cavity.
  • the lower end plate is provided with a first air inlet and the side plate is provided with a first air outlet.
  • the wind wheel includes an upper wind plate, a lower wind plate, and a wind turbine connected between the upper wind plate and the lower wind plate.
  • a plurality of blades are provided with a second air inlet in the middle of the downwind disk, and an air channel is formed between two adjacent blades.
  • the first air inlet, the second air inlet, the air channel, and the first air outlet communicate with the cavity.
  • the blade is divided into an inner section of the blade and an outer section of the blade, and the blades radially beyond the upper wind disk belong to the outer section of the blade, and the inner section of the blade located inside the second air inlet belongs to the inner section of the blade.
  • the distance between the inner sides gradually increases from the inside to the outside in the radial direction.
  • the middle part of the upper end panel is provided with a concave part that is concave toward the cavity, and the outer part of the upper end panel is gradually shifted upward from the inside to the outside.
  • the top surface 2321 of the blade outer section 232 is a flat surface.
  • the outer side of the upper panel is a curved panel.
  • the distance between the bottom surface of the inner section of the blade and the second inner surface of the lower end panel is equal from the inside to the outside in the radial direction and then gradually increases.
  • the distance between the first end surface of the downwind disc and the second inner surface of the lower end panel gradually increases from the inside to the outside in the radial direction.
  • the second inner side surface and the second outer side surface of the lower end panel are curved surfaces.
  • a plurality of mounting legs are provided on the side panel, and the second end surface of the mounting leg is higher than the third end surface of the lower panel.
  • An annular boss protrudes from the periphery of the first air inlet, and a fourth end surface of the annular boss is flush with a second end surface of the mounting leg.
  • a fan system includes a volute fan and a motor.
  • the volute fan includes a volute and a wind wheel.
  • the motor is installed on an upper end plate of the volute.
  • the output shaft of the motor is connected to the wind wheel through the upper end panel.
  • the shell fan is a volute fan described above.
  • a volute fan including a volute and a wind wheel the volute includes an upper panel, a lower panel, and a side panel connected between the upper and lower panels, and the upper panel, the lower panel, and the side panel surround a cavity
  • the wind wheel is installed in the cavity.
  • the lower end plate is provided with a first air inlet and the side plate is provided with a first air outlet.
  • the wind wheel includes an upper wind plate, a lower wind plate, and a fan connected to the upper wind plate and the lower wind plate.
  • a plurality of blades are provided with a second air inlet in the middle of the downwind disk, and an air channel is formed between two adjacent blades. The first air inlet, the second air inlet, the air channel, and the first air outlet communicate with the cavity.
  • the blade is divided into an inner section of the blade and an outer section of the blade.
  • the blades that radially exceed the upper wind disk belong to the outer section of the blade, and the inner section of the blade located within the second air inlet belongs to the inner section of the blade.
  • the distance between the first inner side surfaces gradually increases from the inside to the outside in the radial direction.
  • the airflow enters from the first air inlet, passes through the second air inlet, and exits from the air duct between the upper wind plate and the lower wind plate, and enters the air passage between the lower wind plate and the upper panel.
  • the distance between the first inner side is gradually increased, so the area of the airflow is gradually increased, so it can avoid the stripping loss of the airflow and the sudden change of the airflow velocity and pressure, avoiding wheezing and large Rotation noise, to avoid causing noise and vibration of the whole machine, and improve overall efficiency.
  • the distance between the bottom surface of the inner section of the blade and the second inner surface of the lower end panel is equal from the inside to the outside in the radial direction and then gradually increases.
  • the airflow enters from the first air inlet, and passes between the bottom surface of the inner section of the blade and the lower end panel, and between the lower wind plate and the lower end panel.
  • the distance between the first end surface of the downwind disc and the second inner surface of the lower end panel gradually increases from the inside to the outside in the radial direction.
  • the airflow enters from the first air inlet, and passes between the bottom surface of the inner section of the blade and the lower end panel, and between the lower wind plate and the lower end panel.
  • a plurality of mounting feet are provided on the side panel, and the mounting feet are used to install the load.
  • the second end surface of the mounting foot is higher than the third end surface of the lower panel, which is beneficial to reducing the contact surface between the load and the volute fan and avoiding the load and The volute fan resonates.
  • An annular boss is protruded on the periphery of the first air inlet.
  • the fourth end face of the annular boss is flush with the second end face of the mounting leg, which increases the contact area between the volute fan and the load, which is conducive to the stable installation of the load. .
  • a fan system adopts the volute fan described in the present utility model, which effectively solves the problems of large airflow stripping loss caused by the sudden increase in the area of the airflow and the sudden change of the airflow velocity and pressure, so as to avoid causing asthma Flow and large rotation noise, to avoid causing noise and vibration of the fan system, and improve the overall efficiency of the fan system.
  • FIG. 1 is a perspective view of a volute fan provided by the background technology of the present utility model
  • FIG. 2 is a perspective view of the volute fan provided by the background technology of the present utility model at another angle;
  • FIG. 3 is a schematic cross-sectional view of a volute fan provided by the background technology of the present utility model
  • FIG. 4 is a perspective view of a volute fan provided by the first embodiment of the present invention.
  • FIG. 5 is another perspective view of the volute fan provided by the first embodiment of the present invention.
  • FIG. 6 is a bottom view of the volute fan provided by the first embodiment of the present invention.
  • Fig. 7 is a sectional view taken along A-A in Fig. 6;
  • FIG. 8 is a partially enlarged view of B in FIG. 7;
  • FIG. 9 is a partially enlarged view of C in FIG. 7; FIG.
  • FIG. 10 is an exploded view of a volute fan provided by the first embodiment of the present invention.
  • FIG. 11 is a perspective view of a fan system according to a second embodiment of the present invention.
  • FIG. 12 is a schematic cross-sectional view of a fan system according to a second embodiment of the present invention.
  • a volute fan includes a volute 1 and a wind wheel 2.
  • the volute 1 includes an upper end panel 11, a lower end panel 12, and a side connected between the upper end panel 11 and the lower end panel 12.
  • the panel 13, the upper panel 11, the lower panel 12, and the side panel 13 surround a cavity 14, and the wind wheel 2 is installed in the cavity 14.
  • the lower panel 12 is provided with a first air inlet 15, and the side panel 13 is provided with A first air outlet 16, the wind wheel 2 includes an upper air disk 21, a lower air disk 22, and a plurality of blades 23 connected between the upper air disk 21 and the lower air disk 22, and a second air inlet 24 is provided in the middle of the lower air disk 22,
  • An air duct 25 is formed between two adjacent blades 23, and the first air inlet 15, the second air inlet 24, the air channel 25, and the first air outlet 16 are communicated with the cavity 14, and the blade 23 is divided into the inner section of the blade 231 and blade outer section 232, the blade 23 radially beyond the upper wind plate 21 belongs to the blade outer section 232, and the blade inner section 231 located within the second air inlet 24 belongs to the top surface 2321 and the upper panel 11 of the blade outer section 232
  • the distance H1 between the first inner side surfaces 111 in the radial direction gradually increases from the inside to the outside.
  • the middle portion of the upper end panel 11 is provided with a recessed portion 112 which is recessed into the cavity 14, and the outer portion 113 of the upper end panel 11 is gradually shifted upward from the inside to the outside.
  • the top surface 2321 of the blade outer section 232 is a flat surface.
  • the exterior 113 of the upper panel 11 is a curved panel.
  • the distance H2 between the bottom surface 2311 of the inner section 231 of the blade and the second inner surface 121 of the lower end panel 12 is equal from the inside to the outside in the radial direction, and then gradually increases.
  • a distance H3 between the first end surface 221 of the downdraft disc 22 and the second inner surface 121 of the lower end panel 12 gradually increases from the inside to the outside in the radial direction.
  • the second inner side surface 121 and the second outer side surface 122 of the lower end panel 12 are curved surfaces.
  • a plurality of mounting legs 131 are provided on the side panel 13, and the second end surface 1311 of the mounting leg 131 is higher than the third end surface 124 of the lower end panel 12.
  • annular boss 123 protrudes from the periphery of the first air inlet 15, and a fourth end surface 1231 of the annular boss 123 is flush with the second end surface 1311 of the mounting leg 131.
  • a fan system includes a volute fan and a motor 3.
  • the volute fan includes a volute 1 and a wind wheel 2.
  • the motor 3 is installed on an upper end panel 11 of the volute 1 and the motor 3.
  • the output shaft 31 is drivingly connected to the wind wheel 2 through the upper end panel 11.
  • the volute fan is a volute fan described in the first embodiment.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

L'invention concerne un ventilateur à volute et un système de ventilateur l'utilisant. Le ventilateur à volute comprend une volute (1) et une roue à vent (2), la volute (1) comprenant une plaque de face d'extrémité supérieure (11), une plaque de face d'extrémité inférieure (12) et une plaque de face latérale (13) reliée entre la plaque de face d'extrémité supérieure (11) et la plaque de face d'extrémité inférieure (12). La plaque de face d'extrémité supérieure (11), la plaque de face d'extrémité inférieure (12) et la plaque de face latérale (13) entourent une cavité (14), la roue à vent (2) étant montée dans la cavité (14). La plaque de face d'extrémité inférieure (12) est pourvue d'une première entrée d'air (15) et la plaque de face latérale (13) est pourvue d'une première sortie d'air (16). La roue à vent (2) comprend une plaque à vent supérieure (21), une plaque à vent inférieure (22) et plusieurs pales (23) reliées entre la plaque à vent supérieure (21) et la plaque à vent inférieure (22), le milieu de la plaque à vent inférieure (22) étant pourvu d'une deuxième entrée d'air (24). Un canal d'air (25) est formé entre deux pales adjacentes (23), et la première entrée d'air (15), la deuxième entrée d'air (24), le canal d'air (25) et la première sortie d'air (16) sont en communication avec la cavité (14). Chaque pale (23) comprend un segment de pale interne (231) et un segment de pale externe (232). La pale (23) qui s'étend dans le sens radial au-delà de la plaque à vent supérieure (21) se trouve dans le segment de pale externe (232), la pale qui est située à l'intérieur de la deuxième entrée d'air (24) se trouve dans le segment de pale interne (231), et la distance H1 entre une face supérieure (2321) du segment de pale externe (232) et une première face latérale interne (111) de la plaque de face d'extrémité supérieure (11) augmente progressivement de l'intérieur vers l'extérieur dans une direction radiale. Le ventilateur à volute permet d'éviter un affaiblissement de séparation d'écoulement et des changements soudains de la vitesse et de la pression d'écoulement, et permet également d'éviter un écoulement turbulent ainsi que le bruit et les vibrations.
PCT/CN2019/076272 2018-08-27 2019-02-27 Ventilateur à volute et système de ventilateur l'utilisant WO2020042550A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201821385509.2U CN208778298U (zh) 2018-08-27 2018-08-27 一种蜗壳风机及其应用的风机系统
CN201821385509.2 2018-08-27

Publications (1)

Publication Number Publication Date
WO2020042550A1 true WO2020042550A1 (fr) 2020-03-05

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PCT/CN2019/076272 WO2020042550A1 (fr) 2018-08-27 2019-02-27 Ventilateur à volute et système de ventilateur l'utilisant

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WO (1) WO2020042550A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN208778298U (zh) * 2018-08-27 2019-04-23 中山大洋电机股份有限公司 一种蜗壳风机及其应用的风机系统

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101631992A (zh) * 2007-03-14 2010-01-20 三菱电机株式会社 离心风扇、空调机
US20100068060A1 (en) * 2006-12-11 2010-03-18 Hidetake Ota Cooling fan
KR20120023319A (ko) * 2010-09-02 2012-03-13 엘지전자 주식회사 공기조화기용 터보팬
CN104074797A (zh) * 2013-03-25 2014-10-01 华硕电脑股份有限公司 叶轮及应用其的风扇
JP2018193892A (ja) * 2017-05-15 2018-12-06 日本電産株式会社 送風装置
CN208778298U (zh) * 2018-08-27 2019-04-23 中山大洋电机股份有限公司 一种蜗壳风机及其应用的风机系统

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100068060A1 (en) * 2006-12-11 2010-03-18 Hidetake Ota Cooling fan
CN101631992A (zh) * 2007-03-14 2010-01-20 三菱电机株式会社 离心风扇、空调机
KR20120023319A (ko) * 2010-09-02 2012-03-13 엘지전자 주식회사 공기조화기용 터보팬
CN104074797A (zh) * 2013-03-25 2014-10-01 华硕电脑股份有限公司 叶轮及应用其的风扇
JP2018193892A (ja) * 2017-05-15 2018-12-06 日本電産株式会社 送風装置
CN208778298U (zh) * 2018-08-27 2019-04-23 中山大洋电机股份有限公司 一种蜗壳风机及其应用的风机系统

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